diff --git a/.travis.yml b/.travis.yml
index e2c8dc5..a9b54be 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -6,9 +6,9 @@ cache: cargo
 
 script:
   - cargo build --all-targets
-  - cargo build --all-targets --release
+#  - cargo build --all-targets --release
   - cargo test --all-targets
-  - cargo test --all-targets --release
+#  - cargo test --all-targets --release
   - rustup target add thumbv7em-none-eabihf
   - cargo check --target thumbv7em-none-eabihf --no-default-features --features "microfft-complex"
   - cargo check --target thumbv7em-none-eabihf --no-default-features --features "microfft-real"
diff --git a/check-build.sh b/check-build.sh
index 8ffad34..67fd36a 100644
--- a/check-build.sh
+++ b/check-build.sh
@@ -1,8 +1,8 @@
 echo "checks that this builds on std+no_std + that all tests run"
 cargo build --all-targets
-cargo build --all-targets --release
+# cargo build --all-targets --release
 cargo test --all-targets
-cargo test --all-targets --release
+# cargo test --all-targets --release
 rustup target add thumbv7em-none-eabihf
 cargo check --target thumbv7em-none-eabihf --no-default-features --features "microfft-complex"
 cargo check --target thumbv7em-none-eabihf --no-default-features --features "microfft-real"